Indexing external files with path longer than 255 chars
It's not possible to index external files when their path is longer than 255 characters long.
This happens because the field index_phash.data_filename is only a varchar(255). It would be good to increase the size of this field.
Bug appears in TYPO3 6.2.27, but the size of the field hasn't changed in 7.6 or 8, so I believe the bug will be present there as well.